This is fair feedback on the headline, as the linked article does NOT make that claim. Instead, it makes the same point as @zadkey that "illustrate the rapidity

This is fair feedback on the headline, as the linked article does NOT make that claim. Instead, it makes the same point as @zadkey that "illustrate the rapidity with which COVID-19 can be widely transmitted in a homeless shelter setting and suggest that universal PCR testing, rather than a symptom triggered approach, may be a better strategy for identifying and mitigating COVID-19 among people experiencing homelessness."